Paint help quick

I would strip the engine compartment with wire wheel on 4 1/2 grinder then ectching primer followed by surfacing primer then block sand to finish quality. If its cold in your shop IE wisconson you need the cold weather thiner for your paint. Not below 65 please and for engine compartments I shoot single stage paint and use hardener then your able to wet sand and buff if you need to remove orange peel or minor runs.

Good luck but you really need to strip it before you paint again and no wax N grease remover wipe down finished primer with light amount of thiner immediatly following with a dry cloth leaving no residue. Also use a little fish eye remover in your paint mix.

Hope this helps paint can only be so thick then all kinds of bad JUJU happen. If you ever use wax n grease remover again follow up with the light thinner double rag treatment.

WOW missed the your done its good post. Hope it doesnt craze when its summer